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If you run the SQL that is failing directly in a SQLPlus window do you get any
more information back?
Double check that both DBA_2PC_PENDING and DBA_2PC_NEIGHBORS return "no rows"
on all involved servers.
There are only a few things that cause an update to fail such as trying to
store a value that exceeds the target column capacity, you try to update a not
NULL column to NULL, violate a FK constraint check, or the target row is in use
and you get a distributed timeout. I would think each of these would produce
an error that would be passed back so the suggestion above.

Mark PowellDatabase Administration(313) 592-5148

From: Sanjay Mishra <smishra_97@xxxxxxxxx>
Sent: Tuesday, May 16, 2017 12:07:57 PM
To: dedba@xxxxxxxxxx; dmarc-noreply@xxxxxxxxxxxxx; mark@xxxxxxxxx
Cc: Powell, Mark; Oracle-L Freelists
Subject: Re: transaction or savepoint rollback required Tony
There is no database as well as table trigger on Optic based Database link on
Remote database. Not able to understand as how to resolved it as eveh bounceing
didn;t helped.
Sanjay

It sounds as if the OPTIC database closes the connection on logon. That could
happen if there is a database trigger that fires on logon and raises an
exception.

Cheers,
Tony

On 16 May 2017 8:18:41 AM AEST, Sanjay Mishra <dmarc-noreply@xxxxxxxxxxxxx>
wrote:
Mark
AS per error and the dblink OPTIC, the current as well as remote database is
not showing any error in alert log. I saw in listener log that request reached
OPTIC database link based server.
What is best way on backend to trace distributed query as I tried to trace
session but it is not providing any details. This process was working fine but
suddently got this issue and now failing continously afterward. I even had
bounced the databases but still no success.
TIASanjay

Ok, so go to the alert.log of the db that is hitting end of fie on
communication channel. See if you can determine the root cause of that error.
-Mark
On Fri, May 12, 2017 at 3:39 PM, Sanjay Mishra<dmarc-noreply@xxxxxxxxxxxxx>
wrote:

Mark

Here is what is getting nowSQL> exec Webprocess_mkinv('14003331');
BEGIN Webprocess_mkinv('14003331')

Sanjay, when a distributed transaction fails it has always been the
responsibility of the calling program to issue an explicit rollback command.
Fix the program code to do so then determine why the transaction is failing to
begin with.
Did you list the full error stack returned to the program?
Mark PowellDatabase Administration(313) 592-5148

From:oracle-l-bounce@xxxxxxxxxxxxx <oracle-l-bounce@xxxxxxxxxxxxx > on behalf
of Sanjay Mishra <dmarc-noreply@xxxxxxxxxxxxx>
Sent: Friday, May 12, 2017 11:04:18 AM
To: Oracle-L Freelists
Subject: transaction or savepoint rollback required Has anyone experienced ths
issue with distributed query where I am running a stored procedure but will
have mutliple remote database link used including some insert remotely. Working
fine but suddenly stopped working and has no savepoint in the code and getting
error
ORA-02067: transaction or savepoint rollback required
ORA-02055: distributed update operation failed; rollback required

There is no error on existing as well as on remote database in dba_2pc_pending.
Any other way to check and rollback or so as it is now constantly generating
the same error with every execution
Any help is appreciated
TxSanjay